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Nov. 49 1926.

. E. R. HOLMES RESETTING DEVICE FOR poom wEFT DETEcToRs Filed May 9 I -1925 www N nu ...u

.Federated Nov.. 9, 18.26..

ELBRDGE R. HOLMES, OF VJORCESTER, MASSACHUSETTS, ASSGNOR TO CROvIPTGN t KNO-WLES LOOM lli/"GRES, F WORCESTER, MSSACHUSETTS, A. GORPORATL'ON 0F MASSACHUSETTS.

RESETTING DEVECE FUR LOOIJI VVEF'I DETECTORS.

Application filed May 9,

This invention relates to improvements in weft detectors for looms equipped with regularly reciprocating transferrer arms such as shown in Patent No. 1,372,316 and an object of the invention is to provide means for resetting the plunger usually employed on such detectors after the same has had an indicating movement.

Another object of the invention is to provide positively operating means for engaging and moving a weft detector plunger of the type specified to normal position as the transferrer moves upwardly on an indicating beat of the loom.

A further object of the invention is to provide a weft detecting plunger resetting device which shall move to inoperative position after an indication of weft exhaustion to permit uninterrupted reciprocation of the transferrer and parts carried thereby.

lWith these and other objects in view which will appear as the description proceeds my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

in the accompanying drawings wherein I have shown one form of my invention,

F ig. 1 is a side elevation of portions of a replenishing` mechanism taken from the central portions of a loom showing my invention applied thereto,

Fig. 2 is a detail rear elevation of parts of the transferrer and indicator levers looking in the direction of arrow 2, Fig. 1, parts being shown in section,

Fig. 3 is a fragmentary view similarV to Fig. 2 and showing the parts in a differentposition,

Fig. i is an enlarged vertical section on line 11--4 of Fig. 2, Y s

Fig. 5 is a detail of certain parts seen in lFig. 2 showing the plunger' inposition to be returned to normal positionl by the resetterfand 'Y i Fig. 6 is a horizontal section on line 6 6 of Fig. 5, the pivoted resetter corresponding l toV tlie'olotted line position thereof shown'in The invention( comprises a regularly reciprocating transferrer arm' having a detectorfand a plunger mounted thereon, 'the 'plunger Vbeing normallyinoperative with respect'to an 'iijidicatinglever pivoted on the replenishingrmech'anism and 'being 4moved 1925. serial no. 29,195.

into position to engage said indicating lever by the detector at indication of substantial exhaustion of weft. rThe invention relates more particularly to a plunger resetter preferably pivotally mounted on the indicating lever to be engaged by the plunger after the latter has been moved to indicating position to swing about the center thereof to move said plunger longitudinally to normal position.

Referring more particularly to the drawings it will be seen that I have provided a loom frame 10, weft replenishing mechanism 11, and vertical slides 12 actuated by a color selector 13 movable longitudinally and angular-ly with respect to the replenishing mechanism. A transferrer 14 is pivoted as at 15 and is regularly reciprocated by a rod 16 controlled by a cam not shown.

The transferrer arm has mounted therein for sliding movement an indicating plunger 17 which at the time of indication of weft exhaustion is engaged by a weft detector 18 pivotally mounted as at 19 to a detector lever 20. Said lever 20 is mounted on stud 21 for angular movement with respect to the transferrer and has an offset finger 22 positioned for engagement with a normally raised but yielding actuator Spring plunger 24 tends to hold stop screw 25 against a portion of the lever 2O to position the detector 18 with the toothed surfaces thereof laterally offset from the pivot 19.

A releasing plunger 26 is spring pressed toward the detector 18, being limited in motion toward said detector by the interengagement of pins 27 and 28 carried by the plunger 26 and transferrer arm 14.-, respectively. The plungers 17 and 26 are provided with notches 29 and 30, respectively. one of which is normally occupied by a ball lock 31. A compression spring 32 is interposed between apart of the detector lever 20 and a shoulder on plunger 17 to move the latter to the right as shown in Fig. 2 when the ball lock 31 is received by notch in plunger26.

The parts are normally in the position shown in Fig. 2 and inthe operation of the mechanism thus far described the transferrer arm will be lowered every second pick of the loom when the shuttle^ is thereunder and so long as sufficient yarn is present de tector-18 will be held'jagainst `movement LIU along the bobbin W and finger 22 Will de# press actuator 23. When insnilicient yarn is present the actuator Will resist downward motion of the linger and cause the detector 18 to move longitudinally along the bobbin. As the transferrer nears the bottom of its stroke the detector will engage the releasing plunger 2G and move the same to the position shown in Fig. 3 so that the ball lock may fall into notch 3() and release the plunger 17. The latter will thereupon be moved to the right and as the transferrer ascends Will engage cam face 33 on an indicating lever 34 pivoted as at 35 to the replenishing mechanism to oscillate said lever 34 in a clockwise direction as viewed in Fig. 1 and actuate color selector 13 as described in the aloresaid patent. This part of the mechanism is substantially the same as shown in my co-pending application, Serial N o. 25,642, led April 24, 1925. I My present improvements relate to means for resetting the plunger 17 and by referring to F ig. 5 it will be seen that I have secured a U-shaped clip 50 to the indicating lever and have mounted for free rotation therein a shaft 51 which extends beyond said clip 50 and is secured as by pins 52 to a` resetting member extending around the adjacent portion of indicating lever 34. A spring 54 is secured to the shaft 51 and clip 50 and tends to hold the resetter in the position shown in full lilies in Fig. 5. Said resetter 53 has a concave face 55 which is normally out oi the path of the indicating plunger 1T when the latter rises With the transterrer on nonindicating movements. After the plungjer 1T has been moved to the position shown in dotted lines in Fig. 2 and full lines in Fig. 5 it Will be under the concave face 55 and as the transferrer 14 moves upward- Lv said plunger will engage the resetter and cause the latter to move about the shaft 51 to assume the position shown in dotted lines in Fig. 5, causing said plunger 17 to move inwardly until the notch 29 therein is in position to receive the ball lock 31 at which time the spring pressed plunger 26 Will return to the normal position shown in Fig. 2 and raise the ball into notch 29 to lock the indicating plunger in non-indicating position. On the next downward movement of the transterrer arm the idicating plunger will release the resetter, which will be returned to normal inoperative position by spring 54. The resetter 53 is so proportioned that plunger 17 is moved beyond the adjacent faces of the indicating lever 34 so that as thetransferrer reciprocates no part thereof will vWear against the indicating` lever. From lthe fors'eg'oing it will be seen that I have provided a weft -replenishing mechansm having a regularly reciprocal-,ed trans-fl neces-74 tions may be made therein by those skilled #5i in the art Without departing from the spirit and scope of the invention, and I do not Wish to be limited to the details herein closed but what I claim is:

1. In a detector for loom weft replenish- It ing' mechanism, a Aregularly reciprocating transiterrer arm, an indicating leveri'or the replenishing mechanism, a member mounted on said transferrer arm and movable at indication of exhaustion of weft into operative relationship with respect to the indicating lever, and means operable after said member has moved into operative relationship with respect to said lever to restoresaid member to normal non-indicating position and dependent upon the movement of the transferrer arm to move said member positively beyond the adjacent portions of the indicating lever.

2. In a detector for loom weft replenishing mechanism, a regularly reciprocating transterrer arm, an indicating lever for the replenishing mechanism, a member mounted on and movable with the transterrer to move into operative relationship with respect to the indicating lever at indication of weft exhaustion. and a resetting device normally out of operative relationship with the member and mounted for relative movement with respect to the indicating lever to engage the member and restore the same to normal position as the transferrer arm continues its upward movement.

3. In a detector lfor loom Wett replenishing mechanism, a regularly reciprocating transferrer, an indicating lever for the replenishing mechanism` a plunger slidablv mounted on said transferrer and movable at indication of weft exhaustion into operative' position With respect to the lindicating lever, and 'means carried by and movable with respect to the indicating lever toengage the Vplunger when in indicating position and restore the same to normal position as thel transferrer ascends.

4. In a detector for loom weft replenishing mechanism, a regularly .reciprocating trans'eirer, an indicating lever for the replenish-ing mechanism, ay plunger slidably mounted 'en the transferrer and movable at kil l UU

indication of Weit exhaustion to operative position with respect to the indicating lever, and pivoted means other than the indicating lever to engage the plunger as the transferrer ascends and restore said plunger to normal position.

5. ln a detector for loom Weit replenishing mechanism, a regularly reciprocating transrerrer arm, an indicating lever pivotally mounted on the replenishing mechanism independent-ly of the transferrer, a plunger slidably mounted on the transferrer and movable at indication oi Weit exhaustion into operative position with respect to the indicating lever, and a resetting device pivotally mounted on the indicating lever and movable therewith to engage the plunger as the transerrer ascends on an inc icating pick of the loom to engage said plungver and restore the same to normal position.

fo. ln a detector Jfor loom vveft replenishing mechanism, a regularly reciprocating transferrer arm, an indicating plunger pivotally mounted With respect to thereplenishing mechanism, a plunger slidably mounted on the trans'lerrer arm and movable at indication of ivelt exhaustion into operative position With respect to the indicating lever, a resetting device pivotally mounted on the indicating lever and normally out or the path of the plunger on non-indicating picks o. the leoni and engageable by said plunger on indicating picks of the loom to move pivotally with respect to the indicating lever and restore said plunger to normal position, and means to return said resetting device to a position out of the path of the plunger When the latter is in normal position.

7. ln a weft detector for loom Wert replenishing mechanism, a regularly reciprocating trans'terrer arm an indicating lever for the replenishing mechanism, a member mounted on and movable 'with the transferrer arm to move into operative relationship with respect to the indicating lever at indication of weft exhaustion, and a resetting device normally out of operative relationship with the member to engage the same and restore said member to a position beyond adjacent portions of the indicating lever.

` the lock to unlock said plunger,

8. In a Wett detector for loom Weit replenishing mechanism, a regularly reciprocating transierrer arm an indicating lever for the replenishing mechanism, a member mounted on the transterrer arm and movable into operative relationship with the lever and normally locked in inoperative position, a Wert detector on the transierrer arm operative at substantial exhaustion oi Wett to unlock the member, means independent oit the detectoi` to move the member into operative position with respect to the indicating lever, and a resetting device operative after indication oit Wett exhaustion and against the action of said means to move the member to normal posit-ion beyond adjacent portions of the indicating lever.

9. ln a Weit detector for looms, a regularly moving transiferrer arm, an indicating lever for the replenishing mechanism, a control member i'or the lever mounted on the transterrer arm and normally locked in inoperative position vvith respect to the indieating lever and unlocked at substantial Weit exhaustion, and a resetting device engaging the member to restore the same to locked posn ition to move said member beyond adjacent parts of the indicating lever.

l0. in a weft detector for looms having a surface to be detected, a transierrer arm receiving a regular movement toward the suri'ace to be detected, an indicating lever for the replenishing mechanism,y a plunger on the transterrer arm, a lock for the plunger to hold the same normally inoperative with respect to the indicating lever, resilient means tending to move the plunger into operative position with respect to the indicating lever when the plunger is unlocked, a detector mounted on the transferrer arm and effective at substantial exhaustion of weft to engage and a resetting device Vfor the plunger operative against the action of the resilient means and eective to restore said plunger to normal locked position beyond adjacent portions of the indicating lever.

In rtestimony whereof l have hereunto atixed my signature.

ELBRDGE R. HOLMES. 

